What characteristic strongly suggests that GMCs function primarily as 'cluster factories'?

Answer

The process often results in the formation of many stars simultaneously

The mechanism within these clouds frequently results in the simultaneous formation of numerous stars, indicating that GMCs are fundamentally factories for stellar clusters rather than creators of single, isolated stars.

What characteristic strongly suggests that GMCs function primarily as 'cluster factories'?
Spaceastronomystarsformationstar formationastrophysicsnebulaebirthplacestellar birth